diff options
Diffstat (limited to 'lib/iui/iui.js')
| -rw-r--r-- | lib/iui/iui.js | 518 |
1 files changed, 518 insertions, 0 deletions
diff --git a/lib/iui/iui.js b/lib/iui/iui.js new file mode 100644 index 000000000..6001b27bc --- /dev/null +++ b/lib/iui/iui.js @@ -0,0 +1,518 @@ +/* + Copyright (c) 2007-9, iUI Project Members + See LICENSE.txt for licensing terms + */ + + +(function() { + +var slideSpeed = 20; +var slideInterval = 0; + +var currentPage = null; +var currentDialog = null; +var currentWidth = 0; +var currentHash = location.hash; +var hashPrefix = "#_"; +var pageHistory = []; +var newPageCount = 0; +var checkTimer; +var hasOrientationEvent = false; +var portraitVal = "portrait"; +var landscapeVal = "landscape"; + +// ************************************************************************************************* + +window.iui = +{ + animOn: true, // Slide animation with CSS transition is now enabled by default where supported + + showPage: function(page, backwards) + { + if (page) + { + if (currentDialog) + { + currentDialog.removeAttribute("selected"); + currentDialog = null; + } + + if (hasClass(page, "dialog")) + showDialog(page); + else + { + var fromPage = currentPage; + currentPage = page; + + if (fromPage) + setTimeout(slidePages, 0, fromPage, page, backwards); + else + updatePage(page, fromPage); + } + } + }, + + showPageById: function(pageId) + { + var page = $(pageId); + if (page) + { + var index = pageHistory.indexOf(pageId); + var backwards = index != -1; + if (backwards) + pageHistory.splice(index, pageHistory.length); + + iui.showPage(page, backwards); + } + }, + + showPageByHref: function(href, args, method, replace, cb, backwards) + { + var req = new XMLHttpRequest(); + req.onerror = function() + { + if (cb) + cb(false); + }; + + req.onreadystatechange = function() + { + if (req.readyState == 4) + { + if (replace) + replaceElementWithSource(replace, req.responseText); + else + { + var frag = document.createElement("div"); + frag.innerHTML = req.responseText; + iui.insertPages(frag.childNodes, backwards); + } + if (cb) + setTimeout(cb, 1000, true); + } + }; + + if (args) + { + req.open(method || "GET", href, true); + req.setRequestHeader("Content-Type", "application/x-www-form-urlencoded"); + req.setRequestHeader("Content-Length", args.length); + req.send(args.join("&")); + } + else + { + req.open(method || "GET", href, true); + req.send(null); + } + }, + + insertPages: function(nodes, backwards) + { + var targetPage; + for (var i = 0; i < nodes.length; ++i) + { + var child = nodes[i]; + if (child.nodeType == 1) + { + if (!child.id) + child.id = "__" + (++newPageCount) + "__"; + + var clone = $(child.id); + if (clone) + clone.parentNode.replaceChild(child, clone); + else + document.body.appendChild(child); + + if (child.getAttribute("selected") == "true" || !targetPage) + targetPage = child; + + --i; + } + } + + if (targetPage) + iui.showPage(targetPage, backwards); + }, + + getSelectedPage: function() + { + for (var child = document.body.firstChild; child; child = child.nextSibling) + { + if (child.nodeType == 1 && child.getAttribute("selected") == "true") + return child; + } + }, + isNativeUrl: function(href) + { + for(var i = 0; i < iui.nativeUrlPatterns.length; i++) + { + if(href.match(iui.nativeUrlPatterns[i])) return true; + } + return false; + }, + nativeUrlPatterns: [ + new RegExp("^http:\/\/maps.google.com\/maps\?"), + new RegExp("^mailto:"), + new RegExp("^tel:"), + new RegExp("^http:\/\/www.youtube.com\/watch\\?v="), + new RegExp("^http:\/\/www.youtube.com\/v\/"), + new RegExp("^javascript:"), + + ] +}; + +// ************************************************************************************************* + +addEventListener("load", function(event) +{ + var page = iui.getSelectedPage(); + var locPage = getPageFromLoc(); + + if (page) + iui.showPage(page); + + if (locPage && (locPage != page)) + iui.showPage(locPage); + + setTimeout(preloadImages, 0); + if (typeof window.onorientationchange == "object") + { + window.onorientationchange=orientChangeHandler; + hasOrientationEvent = true; + setTimeout(orientChangeHandler, 0); + } + setTimeout(checkOrientAndLocation, 0); + checkTimer = setInterval(checkOrientAndLocation, 300); +}, false); + +addEventListener("unload", function(event) +{ + return; +}, false); + +addEventListener("click", function(event) +{ + var link = findParent(event.target, "a"); + if (link) + { + function unselect() { link.removeAttribute("selected"); } + + if (link.href && link.hash && link.hash != "#" && !link.target) + { + link.setAttribute("selected", "true"); + iui.showPage($(link.hash.substr(1))); + setTimeout(unselect, 500); + } + else if (link == $("backButton")) { + history.back(); + } else if (link.getAttribute("type") == "submit") + { + var form = findParent(link, "form"); + if (form.target == "_self") + { + form.submit(); + return; // return so we don't preventDefault + } + submitForm(form); + } + else if (link.getAttribute("type") == "cancel") + cancelDialog(findParent(link, "form")); + else if (link.target == "_replace") + { + link.setAttribute("selected", "progress"); + iui.showPageByHref(link.href, null, null, link, unselect); + } + else if (iui.isNativeUrl(link.href)) + { + return; + } + else if (link.target == "_webapp") + { + location.href = link.href; + } + else if (!link.target) + { + link.setAttribute("selected", "progress"); + iui.showPageByHref(link.href, null, null, null, unselect); + } + else + return; + + event.preventDefault(); + } +}, true); + +addEventListener("click", function(event) +{ + var div = findParent(event.target, "div"); + if (div && hasClass(div, "toggle")) + { + div.setAttribute("toggled", div.getAttribute("toggled") != "true"); + event.preventDefault(); + } +}, true); + +function getPageFromLoc() +{ + var page; + var result = location.hash.match(/#_([^\?_]+)/); + if (result) + page = result[1]; + if (page) + page = $(page); + return page; +} + +function orientChangeHandler() +{ + var orientation=window.orientation; + switch(orientation) + { + case 0: + setOrientation(portraitVal); + break; + + case 90: + case -90: + setOrientation(landscapeVal); + break; + } +} + + +function checkOrientAndLocation() +{ + if (!hasOrientationEvent) + { + if (window.innerWidth != currentWidth) + { + currentWidth = window.innerWidth; + var orient = currentWidth == 320 ? portraitVal : landscapeVal; + setOrientation(orient); + } + } + + if (location.hash != currentHash) + { + var pageId = location.hash.substr(hashPrefix.length); + iui.showPageById(pageId); + } +} + +function setOrientation(orient) +{ + document.body.setAttribute("orient", orient); + setTimeout(scrollTo, 100, 0, 1); +} + +function showDialog(page) +{ + currentDialog = page; + page.setAttribute("selected", "true"); + + if (hasClass(page, "dialog") && !page.target) + showForm(page); +} + +function showForm(form) +{ + form.onsubmit = function(event) + { + event.preventDefault(); + submitForm(form); + }; + + form.onclick = function(event) + { + if (event.target == form && hasClass(form, "dialog")) + cancelDialog(form); + }; +} + +function cancelDialog(form) +{ + form.removeAttribute("selected"); +} + +function updatePage(page, fromPage) +{ + if (!page.id) + page.id = "__" + (++newPageCount) + "__"; + + location.hash = currentHash = hashPrefix + page.id; + pageHistory.push(page.id); + + var pageTitle = $("pageTitle"); + if (page.title) + pageTitle.innerHTML = page.title; + + if (page.localName.toLowerCase() == "form" && !page.target) + showForm(page); + + var backButton = $("backButton"); + if (backButton) + { + var prevPage = $(pageHistory[pageHistory.length-2]); + if (prevPage && !page.getAttribute("hideBackButton")) + { + backButton.style.display = "inline"; + backButton.innerHTML = prevPage.title ? prevPage.title : "Back"; + } + else + backButton.style.display = "none"; + } +} + +function slidePages(fromPage, toPage, backwards) +{ + var axis = (backwards ? fromPage : toPage).getAttribute("axis"); + + clearInterval(checkTimer); + + if (canDoSlideAnim() && axis != 'y') + { + slide2(fromPage, toPage, backwards, slideDone); + } + else + { + slide1(fromPage, toPage, backwards, axis, slideDone); + } + + function slideDone() + { + if (!hasClass(toPage, "dialog")) + fromPage.removeAttribute("selected"); + checkTimer = setInterval(checkOrientAndLocation, 300); + setTimeout(updatePage, 0, toPage, fromPage); + fromPage.removeEventListener('webkitTransitionEnd', slideDone, false); + } +} + +function canDoSlideAnim() +{ + return (iui.animOn) && (typeof WebKitCSSMatrix == "object"); +} + +function slide1(fromPage, toPage, backwards, axis, cb) +{ + if (axis == "y") + (backwards ? fromPage : toPage).style.top = "100%"; + else + toPage.style.left = "100%"; + + scrollTo(0, 1); + toPage.setAttribute("selected", "true"); + var percent = 100; + slide(); + var timer = setInterval(slide, slideInterval); + + function slide() + { + percent -= slideSpeed; + if (percent <= 0) + { + percent = 0; + clearInterval(timer); + cb(); + } + + if (axis == "y") + { + backwards + ? fromPage.style.top = (100-percent) + "%" + : toPage.style.top = percent + "%"; + } + else + { + fromPage.style.left = (backwards ? (100-percent) : (percent-100)) + "%"; + toPage.style.left = (backwards ? -percent : percent) + "%"; + } + } +} + + +function slide2(fromPage, toPage, backwards, cb) +{ + toPage.style.webkitTransitionDuration = '0ms'; // Turn off transitions to set toPage start offset + // fromStart is always 0% and toEnd is always 0% + // iPhone won't take % width on toPage + var toStart = 'translateX(' + (backwards ? '-' : '') + window.innerWidth + 'px)'; + var fromEnd = 'translateX(' + (backwards ? '100%' : '-100%') + ')'; + toPage.style.webkitTransform = toStart; + toPage.setAttribute("selected", "true"); + toPage.style.webkitTransitionDuration = ''; // Turn transitions back on + function startTrans() + { + fromPage.style.webkitTransform = fromEnd; + toPage.style.webkitTransform = 'translateX(0%)'; //toEnd + } + fromPage.addEventListener('webkitTransitionEnd', cb, false); + setTimeout(startTrans, 0); +} + +function preloadImages() +{ + var preloader = document.createElement("div"); + preloader.id = "preloader"; + document.body.appendChild(preloader); +} + +function submitForm(form) +{ + iui.showPageByHref(form.action || "POST", encodeForm(form), form.method); +} + +function encodeForm(form) +{ + function encode(inputs) + { + for (var i = 0; i < inputs.length; ++i) + { + if (inputs[i].name) + args.push(inputs[i].name + "=" + escape(inputs[i].value)); + } + } + + var args = []; + encode(form.getElementsByTagName("input")); + encode(form.getElementsByTagName("textarea")); + encode(form.getElementsByTagName("select")); + return args; +} + +function findParent(node, localName) +{ + while (node && (node.nodeType != 1 || node.localName.toLowerCase() != localName)) + node = node.parentNode; + return node; +} + +function hasClass(self, name) +{ + var re = new RegExp("(^|\\s)"+name+"($|\\s)"); + return re.exec(self.getAttribute("class")) != null; +} + +function replaceElementWithSource(replace, source) +{ + var page = replace.parentNode; + var parent = replace; + while (page.parentNode != document.body) + { + page = page.parentNode; + parent = parent.parentNode; + } + + var frag = document.createElement(parent.localName); + frag.innerHTML = source; + + page.removeChild(parent); + + while (frag.firstChild) + page.appendChild(frag.firstChild); +} + +function $(id) { return document.getElementById(id); } +function ddd() { console.log.apply(console, arguments); } + +})(); |